Hi there, can a nokia admin help me or anyone with experience

I have a N91 and a 6234 and i am trying to send a flash lite file in an mms, however the phones display the message when i try and open the mms.

6234:
Unable to show object

N91:
Unable to display message. select objects in options menu for more details.

however when i go into 'objects' from the main menu i am able to open the file contained within the mms perfectly, It is in 'objects' with a question mark symbol next to it.

Am i missing something in the SMIL or what? I dont understand why the phones are doing this

thank for your help